Home / 60,721.29-91,082.16-18,601.20

Finding the Fourth Proportional to 60,721.29, 91,082.16 and 18,601.20

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Solution

The fourth proportional to 60,721.29, 91,082.16 and 18,601.20 is: 27,901.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,721.29 : 91,082.16 = 18,601.20 : x
  2. Step 2: Convert to fraction form
    60,721.29/91,082.16 = 18,601.20/x
  3. Step 3: Cross multiply
    60,721.29x = 91,082.16 × 18,601.20
  4. Step 4: Simplify right side
    60,721.29x = 1,694,237,474.59
  5. Step 5: Solve for x
    x = 1,694,237,474.59/60,721.29
  6. Step 6: Final answer
    x = 27,901.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.